--- title: AdBlue in a Diesel Tank Stanley Crook? Read This canonical: https://www.petrolinadieselcar.co.uk/adblue-in-diesel/stanley-crook-durham/ location: Stanley Crook county: Durham latitude: 54.734360 longitude: -1.745360 service: AdBlue in a Diesel Tank updated: 2026-10-16 --- # Stanley Crook: How Does AdBlue End Up in a Diesel Tank, and How Do You Prevent It? If AdBlue is already in your diesel tank, stop reading for a moment: leave your motor and your ignition off then call 0333 366 0103. In Stanley Crook, catching it before your engine turns usually means draining and a thorough flush where it stands. If you are reading before it has happened, the remainder of this page is about why it takes place and how to make sure it doesn't. ## AdBlue in a diesel car, and its separate tank Many current diesels on the roads about Stanley Crook and Sunniside carry two liquids, not one. Diesel goes to the engine. AdBlue goes to the exhaust, where it is sprayed into the gas to clean it, and it lives in a tank of its own. There's a filler for each tank. Many of vehicles have a single flap for the two, whereas others put the AdBlue filler to the boot or under the bonnet. Topping up your diesel side at the pump happens all the time. Far less commonly, the AdBlue side gets topped up — normally from a bottle, by someone working out where it goes. That gap is where the error lives. ## Stanley Crook: how AdBlue in your diesel tank takes place It is hardly ever carelessness. Three things tend to line up. Haste comes from the warning. The vehicle warns you as AdBlue runs low, and a dry tank puts it into limp mode — so the top-up gets done in a rush, before work on a drive off North Lane, or on the way home in the car park outside Billy Row Club. Then your car is unfamiliar. A hire car, a new vehicle or a company car puts the fillers where your last one did not, and the hand gets to for the cap it would have used on the old one. And the bottle fits. A bottle with a spout goes into a diesel filler as easily as an AdBlue one, and so nothing stops the pour once it has started. The same few seconds decide it, in the middle of Stanley Crook or out in Billy Row. ## How to tell the AdBlue filler from the diesel one Check these first, at a forecourt around Stanley Crook or a drive out in East Hedleyhope. Seconds, no more. - Read the cap instead of going by position: AdBlue ones are frequently blue or marked "AdBlue", and diesel ones usually are not. - On many vehicles, size gives it away: AdBlue gets the smaller filler neck. - The flap. Look inside your fuel flap for a label. Plenty of cars say there which fuel goes where. - The handbook. If the filler is not by your diesel cap, it is in the boot or under the bonnet, and the handbook says which. - Collecting a hire or company car, perhaps at the car park outside Bishop Auckland? Ask the person who drove the vehicle last before leaving, not when the light comes on. ## Keeping AdBlue out of the diesel tank when you top up Anywhere around Durham the light comes on, here is a routine for that day. - Park and switch off. Not on a slope, not with the engine running, and not in a rush on the side of High Road. - Find the AdBlue filler and read the cap. Say "AdBlue" out loud as you unscrew it. It sounds daft and it does the trick. - If both sit under one flap, check the diesel cap is still closed before you lift the bottle — then leave the car on. - Slowly does it, through the bottle's own spout, until it is full or the bottle runs out. - Close the cap and check a second time. Make sure your diesel cap was never opened. Only then start the car. If at step two or three you find you have already poured into your diesel side, stop there. Step five is out. ## Stanley Crook: already put AdBlue in the diesel tank? Short order, then. First: the engine stays unstarted. Leave the ignition off too, since on plenty of diesels switching it on alone starts your pump. Thinning it with more diesel fails, since AdBlue sinks to the bottom rather than blending — and that's where the fuel is sucked from. If you're at a forecourt, whether it's the Mount Pleasant Garage or the Esso, ask the attendants to help roll the car clear of the petrol pump. If you're on your own driveway around Stanley Crook, leave it where it stands. When the motor has run already, stop safely then turn the car off. On the A1(M), under 10 miles from Stanley Crook, that means the next junction. Mileage matters — a quick hop across Stanley Crook is a smaller job than driving under 10 miles to Durham — so say about how far it went. ## Stanley Crook: what occurs when our engineers arrive Our van reaches your car wherever it has come to rest — your own drive, beside Billy Row War Memorial, or by Stanley (Crook) Primary School. The replies determine this work and the price, so our engineers ask what was put in, about how much, and whether it's run. During the call itself, you hear our quote — before dispatch. The fuel system is then rinsed thoroughly, after the tank is cleared. More than with petrol, it counts here: crystals build up, some metals corrode, and nothing clears out on its own, however long it sits. The filter is cleaned, or replaced where it needs to be; fresh diesel goes in; and your car is tested. The motor is started next and tested to be sure it runs properly, all before our engineers leave. Using pumps safe on a working forecourt and quiet enough for use outside a house at night, most jobs in which your engine hasn't run take about half an hour once our technicians arrive. You pay on the day, with nothing upfront, and get a VAT invoice and an engineer report for your insurer. Plenty of insurance policies include misfuelling cover, so it is worth checking yours while we are on the way. ## About Stanley Crook Stanley Crook is a village in County Durham, situated inland at an elevation of 267 metres, approximately 7 miles from the city of Durham. Stanley Crook has a population of around 1029 people, predominantly living in terraced housing. Stanley Crook is located near other small settlements such as Billy Row, Roddymoor, and Crook, in the north east of England. ## Stanley Crook and Durham: AdBlue drains across the area Stanley Crook is a rural village, and our vans that cover it also work the places near it, Roddymoor and Crook among them, across the DL postcode area. A postcode starting DL15 9 gets the van to you fastest. There's no need to move the vehicle. Wherever it stands — near Wooley Grange Motocross Track, in a layby heading to Kittys Wood, at home — that's where it is emptied. If you are close to a boundary, or somewhere hard to explain like the back of Crook Leisure Centre, ring and ask rather than assuming. ## In short, for Stanley Crook people Read the cap before you pour. Still AdBlue in the diesel tank? Petrol in Diesel can empty it where it stands, wherever across Durham: switch the vehicle off and phone 0333 366 0103.